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5.1
Technical data
Limit range
Permissible
ambient
temperature
Contact rating
Switching
differential
Switching point
accuracy
referred to
switch-off point
Mean ambient
temperature
error
Protection
Fusing
required
Operating
medium
Time constant
Operating
position
Action
5.2
Maintenance/fault
standard: +40°C to +120°C (factory-set to +100°C)
special version: +20°C to +400°C (factory-set to +120°C)
at probe: max. +700°C
at thermostat head: max. +80°C, min. -50°C
10(2) A, 230 V AC, p.f. = 1(0.6)
0.25 A, 230 V DC
Limit range
+40°C to +120°C
+20°C to +400°C
Limit range
+40°C to +120°C
+20°C to +400°C
switching point displacement,
referred to the deviation from +22°C ~ 0.07 °C/°C
IP54 to EN 60 529, operation under normal conditions
16 A
flue gas
≤
45 sec
to DIN 16 257, NL0 — NL90 (other NL on request)
to EN 60 730-1
Type 2BL= automatic action with micro switch-off in operation,
no auxiliary energy supply required.
The flue gas thermostat requires no maintenance. In the event of a fault,
please contact your supplier or the head office (see back cover for address).
5 Instrument description
STM-RW-2
STM-RW-2/OS
10 to 18°C
10 to 30°C
10 to 22°C
10 to 40°C
Scale start
Scale end
+ 0°C
+ 0°C
–10°C
–10°C
+ 0°C
+ 0°C
–15°C
–20°C
11
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